EastEnders fans think they've sussed out Reiss' sinister motive with Sonia as they suspect he's lying about his relationship with his wife.
Reiss recently accused Sonia of cheating on him after he found out that she thought she could be pregnant, revealing that he is infertile.
In a recent episode, fans saw Reiss appearing to commit a troubling crime, as he stole thousands of pounds from his wife to pay for his and partner Sonia's IVF treatment.
Claiming to have a savings account with enough funds in it for the treatment, it turned out the money actually belonged to his wife, Debbie.
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